I'm working with hibernate 2.3.5 , jsf 2.0 and primeFaces 3.4 and I'm new at it I need your help please.
I'm using 2 tables "Destination" & "Client" that have a many-to-one relationship and I'm trying to display the data on a dataTable but I get this error.
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org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:57)
at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
at Beans.Destination$$EnhancerByCGLIB$$8c6f424e.getLibelle(<generated>)
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package Beans;
import java.util.HashSet;
import java.util.Set;
public class Client implements java.io.Serializable {
private long idClient;
private Destination destination;
private String raisonSociale;
private String adresse;
private String commentaire;
public Client() {
}
public Client(long idClient) {
this.idClient = idClient;
}
public Client(long idClient, Destination destination, String raisonSociale, String adresse, String commentaire, Set bonlivraisons, Set stations) {
this.idClient = idClient;
this.destination = destination;
this.raisonSociale = raisonSociale;
this.adresse = adresse;
this.commentaire = commentaire;
this.bonlivraisons = bonlivraisons;
this.stations = stations;
}
public long getIdClient() {
return this.idClient;
}
public void setIdClient(long idClient) {
this.idClient = idClient;
}
public Destination getDestination() {
return this.destination;
}
public void setDestination(Destination destination) {
this.destination = destination;
}
public String getRaisonSociale() {
return this.raisonSociale;
}
public void setRaisonSociale(String raisonSociale) {
this.raisonSociale = raisonSociale;
}
public String getAdresse() {
return this.adresse;
}
public void setAdresse(String adresse) {
this.adresse = adresse;
}
public String getCommentaire() {
return this.commentaire;
}
public void setCommentaire(String commentaire) {
this.commentaire = commentaire;
}
}
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package Beans;
import java.util.HashSet;
import java.util.Set;
public class Destination implements java.io.Serializable {
private Long idDestination;
private String libelle;
public Destination() {
}
public Destination(String libelle, Set clients, Set stations, Set prixes) {
this.libelle = libelle;
this.clients = clients;
}
public Long getIdDestination() {
return this.idDestination;
}
public void setIdDestination(Long idDestination) {
this.idDestination = idDestination;
}
public String getLibelle() {
return this.libelle;
}
public void setLibelle(String libelle) {
this.libelle = libelle;
}
public Set<Client> getClients() {
return this.clients;
}
public void setClients(Set<Client> clients) {
this.clients = clients;
}
}
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<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Gestion des Clients</title>
<link rel="stylesheet" href="css/style.css "/>
</h:head>
<h:body style="font-size:85% !important;
background-color: #DB0F1B;
background-image:url(images/background13.jpg);
background-repeat:no-repeat;
background-position: center top;
min-width:100px; min-height:600px;">
<div id="global" >
<h:messages style="display: none;" />
<h:form>
<div id="header" >
<h:messages style="display: none;" />
</div>
</h:form>
<h:messages style="display: none;" />
<center>
<h:form id="a">
<p:growl id="growl" showDetail="true" sticky="false" />
<p:dataTable var="client" value="#{clientController.listaClient}" id="AjoutTab" widgetVar="PersonneTable"
emptyMessage="Client non trouvé" paginator="true" rows="6" paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="6,8,10" style="width:800px;font-size:13px;margin-top: 8%;">
<p:column id="id" headerText="ID" filterBy="#{client.idClient}" filterMatchMode="exact" footerText=" ID exacte">
<h:outputText value="#{client.idClient}" />
</p:column>
<p:column headerText="Raison Social" id="raisonSociale" filterBy="#{client.raisonSociale}" filterMatchMode="exact" footerText="nom exacte">
<h:outputText value="#{client.raisonSociale}" />
</p:column>
<p:column headerText="Adresse" id="adresse" filterBy="#{client.adresse}" filterMatchMode="contains" footerText="contient">
<h:outputText value="#{client.adresse}" />
</p:column>
<p:column headerText="Commentaire" id="commentaire" filterBy="#{client.commentaire}" filterMatchMode="contains" footerText="contient">
<h:outputText value="#{client.commentaire}" />
</p:column>
<p:column headerText="Destination" id="destination" filterBy="#{client.destination.libelle}" filterMatchMode="contains" footerText="contient">
<h:outputText value="#{client.destination.libelle}" />
</p:column>
</p:dataTable>
</h:form>
</center>
<br/>
</div>
</h:body>
</html>
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package Controller;
import Dao.ClientDao;
import Dao.ClientDaoImp;
import Dao.DestinationDaoImp;
import Beans.Client;
import Beans.Destination;
import java.io.Serializable;
import java.util.List;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
@ManagedBean
@SessionScoped
public class ClientController implements Serializable {
private Client client;
private DataModel<Client> listaClient;
public ClientController(){
client= new Client();
}
public DataModel<Client> getListaClient() {
ClientDao dao=new ClientDaoImp();
List<Client> lista = dao.list();
listaClient = new ListDataModel<Client>(lista);
return listaClient;
}
public Client getClient() {
return client;
}
public void setClient(Client client) {
this.client = client;
}
}
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package Dao;
import Beans.Client;
import Utils.HibernateUtil;
import java.util.List;
import org.hibernate.Hibernate;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class ClientDaoImp implements ClientDao {
@Override
public List<Client> list() {
try{
/Session session = HibernateUtil.getSessionFactory().openSession();
Transaction t = session.beginTransaction();
List lista = session.createQuery("from Client").list();
t.commit();
session.close();
return lista;
}
catch(Exception e){
System.err.println("erreur list"+e.getMessage());
session.close();
return null;
}
}
}
I'll remove it! ^_^